A friend messaged me during the regional bank failures asking why bitcoin was ripping on news that a mid-sized American bank had died. He owned bitcoin specifically because he did not trust banks, and here it was trading like a leveraged bet on banks getting rescued. The answer runs through the Fed put, which is one of those ideas everyone in markets references and almost nobody bothers to define. It is worth defining properly, because the two questions that matter, where the strike sits and who is actually covered, are exactly the ones the shorthand version skips.
The origin story is one sentence long
In October 1987 the stock market had its worst single day in modern history, and the next morning the Fed under Alan Greenspan released a short statement affirming its readiness to serve as a source of liquidity to the financial system. That was roughly the whole intervention. Rates came down, dealers got funded, and the market found its footing within months. The lesson traders took away outlived the crash itself, which was that when things break badly enough, the central bank shows up. The pattern repeated often enough over the following decade that it earned a name, the Greenspan put, because it behaved like a put option somebody had written for you at no charge. You held risk assets, and below some unknown price, the Fed absorbed the tail.
The reinforcing episodes are the ones people can still recite. Rate cuts around the LTCM unwind in 1998. Aggressive easing after the dot-com bust. The 2008 crisis, where the toolkit expanded from rate cuts into quantitative easing and lending programs nobody had previously imagined the Fed running. The Powell pivot at the start of 2019, when a roughly 20 percent equity drawdown turned a hiking cycle into a pause within weeks and into cuts within the year. March 2020, when the Fed started buying corporate bond ETFs, which sat well outside anything it had done before. Then the 2023 regional bank failures, where a new facility lent against government bonds at face value even when those bonds traded far below it. Each episode repainted the same lesson, and each one made the option feel a little more like a contractual right.
The strike floats, and inflation moves it
Here is the part the shorthand version gets wrong most often. The strike on the Fed put is not fixed, and inflation is the main thing that moves it. When inflation sits at or below target, easing into a market selloff costs the Fed nothing on the price-stability side of its mandate, so it can afford to respond to relatively shallow drawdowns. That was the world of 2019. When inflation runs hot, the calculus flips. In 2022 equities fell into a deep bear market, crypto fell much further, and the Fed hiked through the whole thing, because the bigger institutional risk was letting inflation entrench. The put did not vanish that year, the strike just moved so far below spot that it stopped mattering for anyone trading dips.
The cleaner mental model is two puts stacked on top of each other. The first is a market-functioning put. If the treasury market seizes, if repo breaks the way it did in 2019, if bank deposits start running, the Fed acts almost regardless of what inflation is doing, because that plumbing is what it exists to protect. The second is an asset-price put, the willingness to ease because stocks are down and financial conditions have tightened. That one only exists when inflation leaves room for it. In 2022 the first put stayed fully live while the second sat miles out of the money, and a lot of people got hurt confusing the two.
Whether crypto is covered
Directly, it is not, and the record here is unambiguous. There is no lender of last resort for exchanges, no discount window for protocols, no facility that buys bitcoin. Terra collapsed, Celsius and Three Arrows collapsed, FTX collapsed, and no official body stepped in for any of them. All of that happened inside a single year while the Fed was actively raising rates, which made the point twice over. Crypto-native stress has never triggered the put, and I see no mechanism by which it would.
Indirectly, crypto benefits through two channels. The first is plain liquidity beta. Crypto trades like a high-beta risk asset, so when the Fed floods the system, crypto tends to move further than equities in the same direction. March 2020 is the clean example. Bitcoin crashed alongside everything else in the panic, then recovered alongside everything else once the response arrived, and kept going well past its old highs while policy stayed loose.
The second channel is incidental coverage, and the 2023 bank failures are the best case study I know. USDC held part of its reserves at Silicon Valley Bank and broke its peg over a weekend when the bank went down. Regulators then guaranteed depositors, the peg snapped back, and bitcoin rallied hard in the weeks that followed. But look at what actually got rescued. The intervention was aimed entirely at the banking system. Crypto happened to be standing close enough that making depositors whole also fixed a stablecoin. If those reserves had sat somewhere outside the regulated banking system, there would have been no response at all, and the depeg would have resolved however it resolved.
So the test I run when crypto is selling off is a single question. Does the stress touch bank balance sheets, treasury plumbing, or the dollar payment rails? If yes, a policy response is plausible and crypto will probably catch the updraft. If the stress is contained inside crypto, I assume no help is coming, because none has ever come.
Trading around a put you do not own
The practical problem with the Fed put is moral hazard pointed at yourself. Once you believe a floor exists, you size bigger, buy dips earlier, and hold losers longer, which is fine when the strike is close and ruinous when it has quietly moved. A few rules I try to hold myself to:
- Never size a position on the assumption of rescue. You do not know the strike, and it moves without notice.
- When a drawdown starts, name the proximate cause before doing anything else. Macro-driven selloffs have a plausible policy floor somewhere below. Crypto-native failures do not, and treating an exchange collapse like a pivot setup is how people rode the FTX contagion all the way down.
- Check the inflation backdrop before assuming a pivot. If inflation is hot, the asset-price put is far out of the money no matter how oversold your chart looks.
- Watch market-functioning indicators rather than prices. Credit spreads, funding markets, treasury liquidity, deposit flows. That is what the Fed actually responds to, and your portfolio being down is not on its dashboard.
The tuition for all this was paid in 2022, when plenty of people ran the 2020 playbook and bought every dip on the theory that the pivot was one bad week away. The floor did not show up until inflation rolled over on its own schedule. My working posture is that the Fed put is real but it is not mine. It is an option written to protect the banking system, and crypto free-rides when it happens to be standing nearby. Free-riding is a perfectly good deal, as long as you check whose name is on the contract before you lever up against it.